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Terror of the Zygons: Part Four
Doctor Who
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sarah jane smith character
harry sullivan character
brigadier lethbridge stewart character
scotland
castle
shapeshifter
alien pretending to be human
alien disguised as a human
sea monster
london england
quarry
u.n.i.t.
duke
river thames
explosion
death of villain
woods
loch ness
spaceship
escape
self destruct
telephone call
prime minister
zygon
fourth doctor
military officer
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